There are so many different patterns to use when making these, so I don't know if I can help you there, but you're right--they do make great presents! My DD made matching ones for herself and me for my last Bday. We never took them off. Well, never until last Sunday when mine broke.
She says she'll make me a new one....I hope I don't have to wait long. It really made me feel good that she always wears hers (she has two--I'm not sure who got the other half of the other bracelet).